The Sign of Faust - Baker City Mysteries, #2

Elizabeth Coderre solves mysteries. Magic, wizards, and killer kittens didn't stop her last semester. Now someone is trying to kill her in absurdly complicated ways, she's hearing voices, her best friends are constantly fighting despite being madly in love, and the desires of Baker City's residents are becoming reality. Can she find out who's trying to kill her and discover the source of everyone's luck, while navigating dating, concerts, school, and competing in the science Olympics? She can only wish.
and you know what they say about wishes!